#66A399 Color
#66A399 is rgb(102, 163, 153) in RGB and hsl(170, 25%, 52%) in HSL. The closest CSS named color is CadetBlue. Black text is most readable on this background.
#66A399
HEX
#66A399RGB
rgb(102, 163, 153)HSL
hsl(170, 25%, 52%)HSV
hsv(170, 37%, 64%)OKLCH
oklch(67.1% 0.065 182.8)CMYK
cmyk(37%, 0%, 6%, 36%)Text Contrast & Accessibility
WCAG contrast ratios for text on a #66A399 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1.
TextWhite text2.89:1AA normal ✗AA large ✗AAA normal ✗
TextBlack text7.26:1AA normal ✓AA large ✓AAA normal ✓
Color Harmonies
Colors that pair well with #66A399 based on color wheel relationships. Click any swatch for its full breakdown.
Tints & Shades
Lighter tints and darker shades of #66A399, useful for hover states, backgrounds, and text variants.